Input text: The sky is white.
The ground is white.
There is a 30 feet high transparent cube.
There is a 10 feet high transparent cube 20 feet inside the cube.
There is an 8 feet high transparent cube 9 feet inside the cube.
There is a 6 feet high transparent train 7 feet inside the cube.
There is a 6 feet high transparent train inside the train. It is facing south.
There is a 6 feet high transparent train inside the train. It is facing west.
There is a 20 feet high white transparent woman 15 feet inside the train.